Back plate for supporting flexible display panel and method for manufacturing the same

Abstract

The present invention provides a back plate for supporting a flexible display panel, the back plate comprising: a glass plate member having a pore formed therein; two coating layers covering both surfaces of the glass plate member, respectively; and a filling material filled in the pore and connected to the two coating layers, wherein the glass plate member comprises two non-deformation structure parts arranged to be spaced apart from each other and a deformation structure part arranged between the two non-deformation structure parts and connecting the two non-deformation structure parts, wherein the deformation structure part is formed through a deformation section in the lengthwise direction and is configured to have a mesh shape by through-holes extending through the deformation structure part along the width direction thereof and forming the pore.

1 . A back plate for supporting a flexible display panel, the back plate comprising:
 a glass plate member having a pore formed therein;   two coating layers covering both surfaces of the glass plate member, respectively; and   a filling material filled in the pore and connected to the two coating layers, wherein the glass plate member comprises two non-deformation structure parts arranged to be spaced apart from each other and a deformation structure part arranged between the two non-deformation structure parts and connecting the two non-deformation structure parts, and   the deformation structure part is formed through a deformation section in the lengthwise direction and is configured to have a mesh shape by through-holes extending through the deformation structure part along the width direction thereof and forming the pore.   
     
     
         2 . The back plate of  claim 1 , wherein porosity of the deformation structure part by the through holes is 20% to 50%. 
     
     
         3 . The back plate of  claim 1 , wherein the filling material is a same material as the coating layer, and the two coating layers are integrally connected to the filling material. 
     
     
         4 . The back plate of  claim 1 , wherein a plurality of non-deformation structure part holes that extend through the two non-deformation structure parts in a thickness direction thereof and form the pore, are formed in the two non-deformation structure parts, respectively. 
     
     
         5 . The back plate of  claim 4 , wherein porosity of the non-deformation structure part by the plurality of non-deformation structure part holes is 1.5% to 20%. 
     
     
         6 . The back plate of  claim 4 , wherein the filling material is a same material as the coating layer, and the two coating layers are integrally connected to the filling material. 
     
     
         7 . The back plate of  claim 1 , wherein a thickness of the coating layer is 5 μm to 20 μm. 
     
     
         8 . The back plate of  claim 1 , wherein the coating layer is made of a carbon-based resin material. 
     
     
         9 . A method for manufacturing a back plate for supporting a flexible display panel, the method comprising:
 a pattern forming operation in which patterns are formed on a glass original plate;   a cutting operation in which cutting is performed on the glass original plate according to the patterns so that original plate cutting materials are separated from the glass original plate;   a coating operation in which a coating solution is coated onto both surfaces of the original plate coating materials,   wherein, in the pattern forming operation, patterns having a mesh shape are formed through a certain section of a center of the original plate cutting materials in a lengthwise direction, and   in the cutting operation, the original plate cutting materials are separated from each other so that patterns having the mesh shape remain in the center of the original plate cutting materials in the lengthwise direction, and   in the coating operation, the coating solution is filled in a pore of the patterns having a mesh shape.   
     
     
         10 . The method of  claim 9 , wherein, in the pattern forming operation, patterns corresponding to a plurality of holes are together formed in a region of the patterns having the mesh shape, and in the coating operation, the coating solution is filled in the plurality of holes. 
     
     
         11 . The method of  claim 9 , wherein the coating solution comprises a carbon material, a resin material, and water. 
     
     
         12 . The method of  claim 11 , wherein the coating solution further comprises graphene. 
     
     
         13 . The method of  claim 11 , wherein the coating solution further comprises carbon nanotube. 
     
     
         14 . The method of  claim 9 , further comprising a slimming operation in which a thickness of the original plate cutting materials is reduced before the coating operation is performed.